
 #include <stdio.h>
#include <string.h>
#include<Windows.h>
#include<stdlib.h>
int main ()
{
	char arr1[] = "welcome to shijie!!!!";
	char arr2[] = "#####################";
	int sz =strlen(arr1);
	int right = sz -1;
	int left = 0;
	while(left <= right)
	{
		arr2[left]=arr1[left];
		arr2[right]=arr1[right];
		printf("%s\n",arr2);
		Sleep(900);
		system("cls");
		right--;
		left++;
	 }

	  printf("%s\n",arr1);
	return 0;
 }
